1-Ethylpyrazole-4-boronic acid pinacol ester
[CAS# 847818-70-6]

Identification

• Name: 1-Ethylpyrazole-4-boronic acid pinacol ester
• Synonyms: 2-(1-Ethyl-1H-pyrazol-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
• Molecular Formula: C₁₁H₁₉BN₂O₂
• Molecular Weight: 222.09
• CAS Registry Number: 847818-70-6
• EC Number: 623-041-1

Properties

• Density: 1.04±0.1 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 43-45 ºC^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2018 ACD/Labs)

^** Ivachtchenko, Alexandre V.; Journal of Heterocyclic Chemistry 2004, V41(6), P931-939.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2A	H319
Acute toxicity	Acute Tox.	4	H302